Command Line Interface
4-130
4
Client Security Commands
This switch supports many methods of segregating traffic for clients attached to
each of the data ports, and for ensuring that only authorized clients gain access to
the network. Private VLANs and port-based authentication using IEEE 802.1X are
commonly used for these purposes. In addition to these methods, several other
options of providing client security are described in this section. These include
port-based authentication, which can be configured to allow network client access
by specifying a fixed set of MAC addresses. The addresses assigned to DHCP
clients can also be carefully controlled using static or dynamic bindings with the IP
Source Guard and DHCP Snooping commands.
Table 4-40 Client Security Commands
Command Group
Function
Page
Private VLANs
Configures private VLANs, including uplink and downlink ports
4-237
Port Security
*
* The priority of execution for these filtering commands is Port Security, Port Authentication, Network Access,
Web Authentication, Access Control Lists, DHCP Snooping, and then IP Source Guard.
Configures secure addresses for a port
4-131
Port Authentication
*
Configures host authentication on specific ports using 802.1X
4-118
Network Access
*
Configures MAC authentication and dynamic VLAN assignment
4-132
Web Authentication
*
Configures Web authentication
4-140
Access Control Lists
*
Provides filtering for IP frames (based on address, protocol, TCP/
UDP port number or TCP control code) or non-IP frames (based on
MAC address or Ethernet type)
4-157
DHCP Snooping
*
Filters untrusted DHCP messages on unsecure ports by building
and maintaining a DHCP snooping binding table
4-146
IP Source Guard
*
Filters IP traffic on unsecure ports for which the source address
cannot be identified via DHCP snooping nor static source bindings
4-153
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